Maxillary sinus punctured jaw bone tractor manufactured through three-dimensional printing

Abstract

The invention discloses a maxillary sinus punctured jaw bone tractor manufactured through three-dimensional printing. The maxillary sinus punctured jaw bone tractor comprises a tractor movable plate,a jaw bone tractor body and a tractor fixing plate. Through mutual cooperation of the tractor movable plate, the jaw tractor body, the tractor fixing plate, a first positioning groove, a U-shaped connecting base and a second positioning groove, the individualized customized jaw bone tractor is achieved, and the individualized jaw bone tractor capable of meeting the treatment requirement of jaw bone defects of different degrees is designed according to the jaw bone defects of different degrees, and a titanium plate can be better attached to the bone surface of a patient, and temporary bending of a tractor fixing titanium plate during operation is avoided; a three-dimensional printing osteotomy positioning guide plate is combined, so that the jaw bone tractor can be accurately placed at a preoperative planned part, an accurate operation effect is achieved to the maximum extent, the operation time can be saved, the operation curative effect is improved, and the maxillary sinus punctured jaw bone tractor is particularly suitable for complex jaw bone malformation treatment and has remarkable social benefits and economic benefits.

Description

technical field [0001] The invention relates to the technical field of mandibular distractors, in particular to a maxillary sinus mandibular distractor manufactured by three-dimensional printing. Background technique [0002] The purpose of distraction osteogenesis of the jaw is to lengthen the jaw to correct deformities such as underdevelopment of the jaw. However, due to the complex and irregular anatomical structure of the human body, it is often difficult for the fixed titanium plate of the finished retractor to fully fit the bone tissue. Therefore, in clinical application, it is often necessary to bend the fixed titanium plate of the retractor so that it fits the bone surface. However, the bending of the fixed titanium plate during the operation not only prolongs the operation time, but also causes residual stress and microcracks on the fixed titanium plate. For patients with complex craniomaxillofacial deformities, the surgical efficacy is often lower. Moreover, it i...

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Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a maxillary sinus mandibular retractor manufactured by three-dimensional printing, which improves the fit between the fixed titanium plate of the maxillary retractor and the bone surface; Parallel, so as to ensure the controllability of the maxillary distraction direction, so as to avoid the defects in the prior art that require surgical adjustment due to the inability to change the traction length and angle after implantation of the maxillary distractor

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